Napdoku: a cozy nest for every cat

A little room for every kitten

• One kitten in every nest. A nest is a rectangle, including a single row, a single column or one square.
• The number gives the area. A kitten marked 6 needs six squares: perhaps a 1 × 6 strip or a 2 × 3 rectangle, if the board leaves enough room.
• No overlapping nests. Each square belongs to exactly one kitten. Nests may touch along their edges.
• Fill the whole board. When every kitten has a correctly sized nest and every square is covered, everyone can settle down for a nap.

Choose Build nest and tap or drag between two outside corners. You can also start at a kitten, then tap outside the selected rectangle to extend it on either side. The kitten does not have to be in a corner. The selection shows its area and becomes a nest when it fits one kitten exactly. Tap the same square twice for a one-square nest. Choose Delete nest and tap inside a nest to remove it. Cancel selection or Escape clears an unfinished selection without changing your board.

Learn a little, then play your way

The short interactive tutorial uses its own practice board. You can skip it, reopen it or finish it without spending help or changing your Journey progress. In the game, Hint highlights a logically proved nest and explains why it fits. Assist builds one proved nest for you. Each attempt has three Hints and one Assist; reading a correction is free. Undo changes your nests without refunding spent help.

Journey offers numbered puzzles and a map you can revisit. The daily challenge changes at midnight UTC, while Free practice lets you choose a board size and difficulty. Your boards and personal progress stay in this browser. Retry asks before starting a new attempt, and earlier clears remain earned.

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